Table 1

Dietary intake after 1 year of treatment with orlistat

All participants

(n = 63)

High attendance group

(n = 31)

Low attendance group

(n = 32)

P*

Energy intake (kJ)

1 year

9229 ± 2304†

8747 ± 2033

9696 ± 2483

Change‡

178 [-366, 722] §

-57 ± 1618

406 ± 2661

0.409

Energy density (kJ/g)

1 year

5.3 ± 1.5

4.7 ± 1.2

5.9 ± 1.5

Change

0.5 [0.2, 0.7]

0.1 ± 0.9

0.8 ± 1.0

0.008

Fat (E%)

1 year

29.7 ± 7.3

27.3 ± 6.5

32.0 ± 7.4

Change

1.7 [-0.2, 3.6]

0.2 ± 6.6

3.2 ± 8.5

0.117

Saturated fat (E%)

1 year

10.1 ± 3.7

8.6 ± 2.4

11.5 ± 4.1

Change

1.2 [0.4, 2.0]

0.7 ± 1.7

1.7 ± 4.2

0.201

Monounsaturated fat (E%)

1 year

10.1 ± 3.7

8.6 ± 2.4

11.5 ± 4.1

Change

-1.3 [-2.2, -0.3]

-2.6 ± 2.9

0 ± 4.5

0.009

Polyunsaturated fat (E%)

1 year

5.4 ± 1.7

5.3 ± 2.1

5.4 ± 1.3

Change

0 [-0.5, 0.5]

-0.3 ± 2.2

0.3 ± 1.4

0.169

Protein (E%)

1 year

17.4 ± 2.7

18.3 ± 2.5

16.5 ± 2.6

Change

0 [-0.6, 0.8]

0.8 ± 3.3

0.3 ± 1.4

0.051

Carbohydrate (E%)

1 year

47.7 ± 6.5

48.7 ± 6.3

46.7 ± 6.5

Change

-1.9 [-3.7, -0.2]

-0.4 ± 5.9

-3.4 ± 1.4

0.089

Fiber (g/MJ)

1 year

3.9 ± 1.4

4.3 ± 1.5

3.5 ± 1.2

Change

-0.3 [-0.6, -0.1]

-0.1 ± 1.2

-0.5 ± 0.8

0.143

* Comparison of changes between the high and low attendance group (unpaired t-test). The subjects in the high attendance group attended more group sessions than the mean which was 9.34 sessions and the subjects in the low attendance group attended = 9.34 sessions.

† Mean ± SD ‡ Changes are calculated as the difference between 1 year and the start of orlistat. § Mean; 95% CI in brackets.

Svendsen and Tonstad Nutrition Journal 2011 10:21   doi:10.1186/1475-2891-10-21